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Copper metal fiber with regular flaky finned structure and manufacturing method for same

A manufacturing method and copper metal technology, applied in the field of metal fiber manufacturing, can solve the problems of difficulty in meeting the mass production of metal fibers, high production cost, low bonding strength, etc., and achieve rich surface structure and morphology, efficient manufacturing process, The effect of improving sintering performance

Inactive Publication Date: 2012-07-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the commonly used drawing fiber manufacturing method has high production cost and complicated process. The copper fiber produced has a smooth surface and has low bonding strength with the matrix when used in the manufacture of composite materials. Moreover, it is difficult to form a sintered neck when sintering the fiber mat. Therefore, the requirements for sintering conditions (sintering temperature, sintering pressure, sintering time) are usually higher than those of copper fibers produced by cutting methods
The traditional metal fiber cutting method is generally based on a single-edge cutting process, which is inefficient, easy to break chips, and difficult to meet the requirements for mass production of metal fibers

Method used

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  • Copper metal fiber with regular flaky finned structure and manufacturing method for same
  • Copper metal fiber with regular flaky finned structure and manufacturing method for same
  • Copper metal fiber with regular flaky finned structure and manufacturing method for same

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Embodiment

[0025] Such as figure 1 Shown is the schematic diagram of the principle of the cutting process of the present invention. A high beryllium copper round rod is selected as the raw material. First, the surface of the workpiece 1 is cleaned and degreased, and the oxide layer on the surface of the workpiece 1 is removed by using the cylindrical turning method, and then one end of the workpiece 1 is fixed. On the three-jaw chuck of the CA6140 lathe, use a tapered drill bit with a diameter of 10 mm to cut a tapered hole with a depth of about 8 mm at the center of the other end surface of the workpiece 1 . Replace the tapered drill bit with a tapered thimble, and press the tapered hole so that the workpiece 1 can rotate smoothly to reduce the impact of vibration;

[0026] Such as figure 2 It is a schematic diagram of the geometric structure of the multi-tooth tool 2. The multi-tooth tool is a multi-tooth tool with a large edge angle. The multi-tooth tool 2 is installed on the lathe...

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Abstract

The invention discloses a copper metal fiber with a regular flaky finned structure and a manufacturing method for the same. Copper alloy round bars with 35-60mm diameters are used as raw materials, and a continuous microfine metal fiber is cut by a multi-tooth cutting tool on a lathe. The manufacturing method is simple in process and high in cutting efficiency, requirements on equipment conditions are low, the equivalent diameter of the manufactured copper metal fiber ranges from 50 micrometers to 100 micrometers, the regular flaky finned structure is arranged along the length direction of the fiber, the fiber has rich rough surface appearance, and the specific surface area of the metal fiber can be remarkably increased. Therefore, the sintering property of the metal fiber can be improved, and functional characteristics of the metal fiber as a porous metal raw material in numerous application fields can be enhanced.

Description

technical field [0001] The invention relates to a method for manufacturing metal fibers, in particular to a copper metal fiber with a regular lepidopteran structure and a method for manufacturing the same. Background technique [0002] Metal fiber is a new type of high value-added engineering material that appeared in industrially developed countries in the late 1970s, and has now developed into an important branch of metal material science. Metal fibers not only inherit many inherent excellent properties of metal materials, but also have better spinnability and sinterability, and are widely used in many fields such as chemical industry, machinery, metallurgy, aerospace, and military industry. In recent years, with the continuous expansion of the application field of metal fibers, the performance requirements of metal fibers are also getting higher and higher. For example, sintered felt made of metal fibers is a new type of porous metal material with a three-dimensional net...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/04B22F1/00
Inventor 袁伟汤勇杨晓军万珍平刘彬
Owner SOUTH CHINA UNIV OF TECH
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